Process of producing gas.



J. H. HIRT.

PROCESS OF PRODUCING GAS.

APPLICATION FILED FEB.14, 1910.

1,083,683. Patented Jan. 6, 1914.

WITNESSES UNITED STATES PATENT OFFICE.

.JULESH. HIRT,'OF EL BASO,TEXAS, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 ALLIS- GHALMERS'MANUFA'CTURING- COMPANY,-A GORPORATION OF DELAWARE.

PROCESS OF PRODUCING GAS.

Specification of Letters Patent.

Patented Jan. 6, 1 914.

.origu'naliapplicationiled November. 30, 1908, Seria1 No.'-465,425. Divided and this application filed February 14, 1910. SeriaLNo. 543,727.

' T 0 allwlwm it may concern :zen: of the Unitedv States; residing at El Paso in the county of .El Paso and State of Texasfhave invented a certain new and useful Improvement in Processes of Producingv Gas,-of which the following is a specification.

This application is a division of application Serial Number 465,425, filed Novem-.

ber 30, 1908.

My invention relates tomethod of makingv Figure 1 is a diagrammatic view of the apparatus, the producer'being shown in section. Fig. 2 is a plan view of the material charging mechanism and a section of a portion of the furnace. Fig. 3 is a plan view of the cap.

In carrying out my improved method, I charge finely divided carbonaceous material admixed with air into a closed chamber, ignite the same and admit sufficient air to convert the material into carbon dioxid, and continue to so heat the furnace until the refractory lining of the furnace is highly heated. After the interior of the furnace is incandescent or almost in this condition, the volume of air is reduced until only sufficient is admitted to convert said material to carbon monoxid. Steam or other form of moisture is admitted at a point of highest temperature in said furnace which subservcs the two fold function of controlling the temperature and enriching the gas evolved.

The carbonaceous material admixed with air is charged into the chamber under pressure tangentially to the walls thereof whereby the material under pressure is given a circulatory movement and caused to contact or impinge upon the incandescent or highly heated walls of said chamber whereby any free carbon therein adheres to said walls and remains thereon in an incandescent state, the force and direction given the incoming gases causing the same to assume a vortex shape in its ascent and permitting any carbon dioxid that may be evolved to converted to carbon monoxid by cont-act with themcandescent carbon on the walls of material without introducing any excess oxygen.

' Referring to said drawings, 1 is a vertically disposed furnace,preferably circular in cross section. nace is divided into two compartments, 2

and 3, the lower one,-2, of which is preferably circular in cross section, and is provided with an opening 4 which is disposed tangentially relatively to the axis of the chamber, whereby when finely divided carbonaceous material is charged into said chamber it is caused to travel in a circulatory path so that the highly heated gases thereof meet the incoming material and raise the temperature thereof very-considerably, and vortex like the gas ascends toward the contracted top of the chamber and passes through the opening 5 into chamber 3, and is conveyed through pipe 6 to any suitable gas receiver, not shown. A portion of gas passing from said chamber 3 through pipe (5 may be taken from said pipe 6 through pipe 7 and discharged into the pulverizer 8 where it serves to dry said material before the same is charged into the chamber 2. A valve 9 in said pipe 7 controls the admission of said gas. A cap 10 in which passages 1111 are formed is placed immediately over said opening 5', although checker work or other form of retardant may be used to prevent the escape of free carbon, if any might be in the carbon monoxid admitted to chamber 3. At' a point in chamber 2 where the highest temperature is attained, that is, where it begins to contract a series of steam jets 12 enter for the purpose of regulating or controlling the temperature of said chamber, whereby the usual refractory materials may be employed in the construction of the furnace, otherwise without the introduction of the steam the temperature attained at this point in the fur- The interior of said furnace would quickly destroy the most highly refractory materials. The introduction of the steam at this point serves t) produce a better quality of gas than is usually obtained. The gas evolved may be taken 011' through the opening .13 in the top' of the producer instead of through pipe 6, and the slag from the impurities contained in the material is removedthrough the opening 14. The orifice 4 'for the admission of earbonaceous material is disposed at a tangent to the walls of the chamber 2 and is connected with any suitable pulverizer 8 for reducing the material to a finely divided state, and means for admitting thereto air under pressure.

It is claimed and desired to secure by Letters Patent,

1. The herein described method of making mainly carbon monoxid gas which consists in charging finely divided carbonaceous material admixed, except as herein later stated,

only with air suflicient to form carbon monoxid into a closed and highly heated chamber in a direction tangentially to the axis thereof, admitting only moisture to the highly heated. gas and withdrawing a portion of the resulting product gas and recharging the same with the material into said furnace.

2. In the art of producing gas, the process consisting in charging into a chamber finely divided combustible material mixed, except as herein later stated, only with air suflicient only to form carbon monoxid, igniting said mixture, admitting only moisture to theignited mixture, withdrawing a portion of the resulting product gas and recharging into said chamber said portion with said material.

In testimony whereof, I affix my signature in the presence of two witnesses. 1

JULES H. HIRT.

Witnesses:

LEON E. HIR'r, C. CADENA. 

